need help with wheel offsets

[jr.]

I recently got a 91 coupe and I am in the process of building it, but I'm stumped on getting the wheels. Here's what I'm after,, 17x8 up front and 17x10 out back I don't want to do a wide body. The car will be on coil overs with all the suspension upgrades. I'll be mostly doing autocross and track events with some other motor sport activities thrown in. What offset would I need to run to get the wheels to tuck in but not rub. Also I am gonna roll the fenders.

[ashibah83]

i dont think you can fit 10's in the rear of an s13 without either a MASSIVE pull or overfenders and 17x8 like +10 i think maybe even a 0 offset it your gonna pull the fronts?

[adrianfromthecastle]

i dont think you can fit 10's in the rear of an s13 without either a MASSIVE pull or overfenders and 17x8 like +10 i think maybe even a 0 offset it your gonna pull the fronts?

nah, you can..

heres a pic of 17x10 +18 wrapped in 235/40's



and I would suggest going with 17x9 +15 up front

[gumby74]

A 17x10 +35 with a 255/40 tire fits in the rear with only a rolling to the lips. No pull required.A 17x9 +15 with a 235/40 tire fits up front and clears Tein coils by a few hairs.I run minimal camber 1* up front and roughly 1.5* out back.A 17x8 +10 thru +25 with a 225/45 or 215/45 works very well up front with no mods what-so-ever.These fittings are with a moderate drop, about 2" fender gap front and rear.

[whiterps13]

Im getting really tired of everyone on this forum thinking that staggering wheels/tires is THE answer to all of their problems. Its not just you.

Staggering is extremely unnecesary when you can run 9 inch wide wheels on the front of an s13. There is no need to run anything wider in the rear unless its a drag only car.

If youre going to be running auto-x and track events, staggering is only going to exagerate the underrsteer that your 17 year old car has. Plus, you cant rotate youre tires, which is very important in tight auto-x courses in terms of tire wear and longevity. Plus, a 10 inch wheel in the rear isnt going to give you any more grip than a a given tire on a 9 inch wheel.

Run a 17x9 +20 with 235/40/17 all the way around. Its by far the best setup for an s13 without major fitment work.

[ashibah83]

Run a 17x9 +20 with 235/40/17 all the way around. Its by far the best setup for an s13 without major fitment work.

[rbsileighty]

Im getting really tired of everyone on this forum thinking that staggering wheels/tires is THE answer to all of their problems. Its not just you.

Staggering is extremely unnecesary when you can run 9 inch wide wheels on the front of an s13. There is no need to run anything wider in the rear unless its a drag only car.

If youre going to be running auto-x and track events, staggering is only going to exagerate the underrsteer that your 17 year old car has. Plus, you cant rotate youre tires, which is very important in tight auto-x courses in terms of tire wear and longevity. Plus, a 10 inch wheel in the rear isnt going to give you any more grip than a a given tire on a 9 inch wheel.

Run a 17x9 +20 with 235/40/17 all the way around. Its by far the best setup for an s13 without major fitment work.

Not true on the stagger comment... I have an extreme setup only due to the cage... but with a VLSD, Kei Office XT's, cage, stock Hicas sways (Hicas is gone of course), and 235 on a 17x9F/245 on a 17x9.5R... mine has very little trouble with natural oversteer (not entirely throttle induced) which is why I've considered upping to a 20mm stagger over the current 10mm (along with larger sizes... these were free tires). On the stock 205's and no cage with everything else the same... she was still bias toward oversteer.

Best mod you can do to a hatch is a cage btw... I'm dumping my door bars soon b/c I'm turning the car from race into a "GT" car... but 4-6pt is a must if you have a hatch (just make sure you have padding as you don't wear a helmet on the street... normally)... saved my life (no lie) in a Z33 too... but that's a tangent

My AP2 S2k would be dangerous if it wasn't staggered... some cars need it, and since not all modded S13's are the same... each owner should assess the need for tire sizes based on their driving style/purpose for the car (including future mods since wheels can be a huge investment).

Lots of people are out for image (not big on that for this kind of car, but whatever... their car isn't mine)... but staggering can even work the ones that aren't if their mod setup demands... so it's not fair to say running a square setup is the way

Just my $1.50

But... 17x8 and 17x10 isn't worth it... unless you do drive a S2000 (man that car sucks for wheel choices btw... my stocks are 17x7.5 +55 and 17x8.5 +65... +65!!!)... put a 9 in the front if you're doing more than 9 in the back for sure


Modified by rbsileighty at 8:27 PM 2/11/2008

[whiterps13]

I definately agree that cars equipped with staggered wheels stock should also use staggered aftermarket wheels. But than again, most cars that run stock stagger are performance oriented sports cars. S13's are 15+ year old economy cars marketed primarily for female secretaries. I dont know what your definition of biased towards oversteer is, but stock s13's understeer like hell.

Your 235/245 stagger is nowhere near comparible to a 8" and 10" stagger. I can guarantee that this setup -will- cause understeer, theres no way around it.

Im just tired of people automatically wanting to stagger wheels and tires because theyre making an ungodly 225hp. Its also retarded when you can run atleast a 9 inch wheel all the way around. There are very few s13's on this forum that -need- any tire larger than one you can fit on a 9 inch wheel. And trust me, those people dont need to ask for wheel fitment help.

[jr.]

thanks for all the in put, gives me some things to consider.